Air-coupling.



Nn. 864,437, PATNTBD AUG. 27, 1907.

F. yAonY. AIR-CGUPUNG MOATION FILED DBG. 2Q. 1906,l

APP

MTA/58855.-

have inventeda'new and Improved Air-Coupling, of

. brakeman between the cars to release the air couplings.

'l the views.

as ap lied to a car, and shows the position oi connected p ffrig'. 2 of the single coupling;

also on the under side nipple 13 connecting precisely i' r-.rralv:; l 7 which projects from the end of the centr' dings such as are used in connection with the train pipes maticcoupling of this character whichcan be easily applied to existing cars, and which will couple easily UNITE-n s FRANCIS O Specification of Letters Pa.tent.

'PictuNTA Genion,

BODY, or sT. PAUL, Minnesota.'

AIR-COUPLING.

patented Aug. er, 13907;.

Application lsd December 29, 1906'. Seril No. 360,064.

To all whom may concern: i

Be it known that l, FRANcrs C. PEABODY, of the city of St. Paul, Ramsey county, State of Minnesota,

which the following is a. lull, clear, and exact description. -My invention relates toimprovements in. air coupof railway cars, to connect the pipes of opposed cars.'

The object of my invention is to produce an autos so as to make a perfect air connection between the opposite train pipeskand which can be uncoupled'automatieally when the car couplings are released. For this last reason it will be seen that the improved coupling is desirable, as it obvia-tes the danger caused by sending a My invention is intended further to produce a coupling of this kind which is very simple, has few parts to get outof order, and which when uncoupled designcdly will retain the air in the train pipe, but if the coupling setting the brakes. v

` With these ends in view, and with the general object ofmaking a simple and eflicient'air coupling, my invention consists of certain features of construction and combinations-of parts which will be hereinafter described-'andi'. l med.

Reference i ie had to the accompanying drawings forming apar Vo f-tlhis specification, in which similar figures of reference indicate corresponding parts in all Figure 1 is aside' elevation ot' my improved coupling couplings. I Fig. 2 is a longitudinal sectional plan of the ttupliifi'g, showing two united couplings; ,Fig 3 is abrokcn detail showing the position of the spring cat-ch when released. Fig:41 is,atpp"for plan vi ew of a single coupling: Fig. 5 is alon'g'itu'tlnal sectiorron the line 5 and Fig. -6 is a front end viewof one of the e'oupli `The coupling has 'ahead-il i :uch be o any api proved shape, but is exiernallyl'xizehtsgusual, and it is` mounted in the customary maiflneiihaving a shank l1 which ispressed forward bythe spring 12. The head has as usual with the train pipe 14, and opening into a small chamber 16.2 Within the head 10 is main c hal formed of the two parts l5, and communicationbeti 'the chambers `l5 and 16 is controlled by the sli i" tion of ithogplerheadmnd is adapted to b inward to obtain communication between the` twdair chambers by contact with an opposed head of ricorre spending valve; I I

The-valve 17 slides in a-gasket 18 near the front end of the coupling, which gasket can be held conveniently .in plapeby the nuts 19, and the-yalve also slides 6 0 25. It will be seen that when the valve is pressed lorward, the inner end of the port 23 will be infront of the 70 gasket or ring 20, and so communication between the two parts of the air chamber will be cutoff, and it will be further observed that the collar 25 besides serving as an abutment for thespring 24, also serves to limit the` forward movement oi the valve.- i

One side of the' air chamber 15 has ai. Haring mouth 10". at the iront end of the head `10,'and-the chamber` communicates with the chamber of the opposed coup 1er through a nipple 26, which has preferably a rounded end so that it can readily enter the mouth 10 of the' -op- 8O posed coupler head,` audit canV be secured. inany'coni l venient Way, as by means of the screw thread shown:l at26. 'f f The outer end of the valve 17 has an upwardly and i rearwardly extending spring arm' 29, which terminates 85 in a catch 30, andthis is adapted to engage the tilting block 31, which is pivoted between bosses 32 onthetop of the head 10.. i The block 311,: lconnectsby meapsof a rod 33 with 'the tilting lever 34 of 'the .car "coupler`35.

In order that both catches 30 may be" released by yop- 90 erating one ca'r coupling, 'the' rod 33has a lateral arm V 33a4 which extends beneath av pin' 33h on the opposed rod (see Fig. 1) and consequently it4 will be seen that when the car coupling is operated as usual from the side of the car, byliftin'g the lever 34,-the latter will lift up 95 the spring arm29 of eachcoupling as shown by dotted lines in Fig. 5, and the arm 29 actuated by the spring 2 4, willthen pull against the `block 31 off the center of the block, so that the valvelfl can slide freely forward to closed position, and thus it will be seen that the un- 100 `coupling of the car coupling serves automatically to uncouple theair coupling. While I have shown a par-V ticular form of Spring arm and catch connectedwith a peculiar vtilting lever 34, it is obvious that the invention is not restricted to this precise mechanism, but that 10 5 many devices might be used for releasing the valve 17 to the action of its spring by the uncouplin g of the car.

It will be `seen that I have shown a very simple 1. An air coupling of the kind described,l comprising a coupler head having an air chamber therein with plural openings to connect with the corresponding chamber of an opposed coupling, a second chamber within the first chamber connecting with the train pipe, anda spring pressed normally closed valve having a port therein to connect the two chambers, and arranged vto be openedby contact with an opposed valve,

2. coupling of the kind described, lcomprising a head having 'communicating chambers, from one of which' prop jects a'forwardly extending nipple, and the other of which connects with the train pipe, and the spring pressed slide ,valve moving longitudinally in .the head and projecting from the end thereof, the said valve having a port adapted to connect the two chambers.

An air coupling of the kind described, comprising a` head having two air chambers, one of which connects with the train pipe, means for connecting the main chambers with the corresponding chambers of an opposed coupling.

and a slidel valve projecting from the end of the head and having a port therein adapted to open an air' passage between the two chambers of the head.

l 4. An air coupling comprising a head having air cham bers therein,- one of which connects with the train pipe, and the other of which is adapted to have connection with the chamber of an opposed head, a slidevalve movable long-itudinally in the head and having a port connectingwith the two chambers,v and' a locking device to hold the Valve open. 5. An air'coupling comprising a head having plural .air chambers therein, one connecting with the train pipe, and the other adapted to connect with the chambers of an opposed coupling, a slide valve having a port to open connectween the two chambers.

bers of an opposed coupler, a slide valve adapted to open communication between the .two chambers, and a locking v device te hold'th'evalve open, ot a car4 coupling, and an operative connection between the car coupling'and the locking device, wherehy'the uncoupling of the car releases the locking device.

7. In a 'structure of the kindA described, the combination'- with the coupler head having two chambers therein, 'one connecting with the trainppe and the'ther, with the chambersof an opposed coupling, and a slide valve controlling the connection between the chambers. of a spring' catch on` the valve, and the tilting block to engage the catch. v

8. The combination with the coupler head havingl two chambers therein, one of which connects 'with the train pipe and the other of which is adapted to connect withlthe chambers of an opposed couplingl of the spring pressed slide valve movable longitudinally in the head, and having an oblique port therein adapted to open communication bef). A structure such as described, comprising a head having an air chamber therein, the frontend of the chamber being open on one side and the other provided with a projecting nipple, a second air chamber in the head, connecting with the train pipe, and a slide 'valve projecting; from the 'head and through the valve of the-secondy chamber, the said valve being arranged to open air connections between the two chambers. l

`l0. .-Lstructure su'ch as described, comprising,r a head having au air chamber therein adopted to connect with the chamber of anA opposedhead. a lconnection between the train pipe and the headand ayslide valve actuated by contact with an opposed valve, and'cont1'olling connnunication between thetrain pipe and the main air chamber.

' FRANCIS C. PEABODY.

Witnesses:

LLoYD PEABODY, CHas. LINDAHL. 

